تاثیر دما و میزبان بر زیست‌شناسی کنه تارتن دو نقطه ایTetranychus urticae (Acari: Tetranychidae)

Due to the significant effect of different host plants and temperatures on insect and mite populations, the application of a successful integrated management program requires the study of their biological characteristics at different temperatures and on different hosts. In current study, the biological parameters of Tetranychus urticae (Acari: Tetranychidae) were investigated at four constant temperatures 15, 20,25 and 30ºC on four hosts of bean, rose, almond and common mulberry under conditions of 60±5% RH and a photoperiod of 16L: 8D h. The results showed that the temperature and the host have an effect on the developmental time of two spotted spider mite, and decreased with increasing temperature both for female and male in most treatments. The longest immature period of females (21.65 ± 1.51 days) and the shortest (5.04 ± 0.30 days) were obtained at 15ºC on common mulberry and at 30ºC on bean respectively. The highest female adult longevity (16.50 ± 1.43 days) and oviposition period (15.65 ± 2.23 days) were obtained on bean at 20ºC and the most fecundity (49.37±5.59 eggs) was obtained on common mulberry at 25ºC. The shortest female adult longevity (6.65±1.38 days) and oviposition period (5.00±1.41 days) were obtained on common mulberry at 30ºC and the lowest fecundity (6.31±2.69 eggs) was on the same host at 15ºC. According to the results, 15°C and common mulberry were destructive temperature and the most unsuitable host to develop T. urticae respectively. The current results can be used in the forecasting and integrated management programs of T. urticae.